1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrei [34K]
3 years ago
6

What does the expression "5n" represent?

Mathematics
1 answer:
Andre45 [30]3 years ago
4 0

Answer:

the product of 5 and a number

Step-by-step explanation:

5n is really 5 * n.

In higher education math, the multiplication sign is not used. A number and a variable (or a equation in grouping symbols) would be just together next to each other. When it's like this, you would have to multiply the numbers.

Example:

4n; n = 2\\4(2) = 4* 2 = 8

You might be interested in
Find the terminal point determined by t= 10pi/3.
Nastasia [14]
Note: On the unit circle, P (x, y) = (cos(t), sint(t))
Terminal point of t = 10pi/3 is <span>( -1/2, -sqrt(3)/2)</span>
5 0
3 years ago
Read 2 more answers
The variables x and y vary directly. Given the equation y = 2x , find the value of x when
Whitepunk [10]
The answer for this question is 5
3 0
3 years ago
Read 2 more answers
Ten college students were randomly selected. Their grade point averages​ (GPAs) when they entered the program were between 3.5 a
solong [7]

Answer:

The 95% confidence interval for the true slope is (0.03985, 0.14206).

Step-by-step explanation:

For the regression equation:

\hat y=\alpha +\hat \beta x

The (1 - <em>α</em>)% confidence interval for the regression coefficient or slope (\hat \beta ) is:

Ci=\hat \beta \pm t_{\alpha/2, (n-2)}\times SE(\hat \beta )

The regression equation for current GPA (Y) of students based on their GPA's when entering the program (X) is:

\hat Y=3.584756+0.090953 X

The summary of the regression analysis is:

Predictor          Coefficient             SE             t-stat            p-value

Constant             3.584756          0.078183       45.85075      5.66 x 10⁻¹¹

Entering GPA   0.090953          0.022162        4.103932       0.003419

The regression coefficient and standard error are:

\hat \beta = 0.090953\\SE (\hat \beta)=0.022162

The critical value of <em>t</em>  for 95% confidence level and 8 degrees of freedom is:

t_{\alpha/2, n-2}=t_{0.05/2, 10-2}=t_{0.025, 8}=2.306

Compute the 95% confidence interval for (\hat \beta ) as follows:

CI=\hat \beta \pm t_{\alpha/2, (n-2)}\times SE(\hat \beta )\\=0.090953\pm 2.306\times 0.022162\\=0.090953\pm 0.051105572\\=(0.039847428, 0.142058572)\\\approx (0.03985, 0.14206)

Thus, the 95% confidence interval for the true slope is (0.03985, 0.14206).

6 0
3 years ago
Question 15
solniwko [45]

The answer fam is......... 3x – 4y = 4

7 0
3 years ago
10) A cube has width of 10 cm. What is the volume of the cube?
PSYCHO15rus [73]

Volume of the cube is 1000 cm³

Step-by-step explanation:

  • Step 1: Find the volume of the cube.

Side of the cube = 10 cm

⇒ Volume of the cube  =(side)³ = 10³ = 1000 cm³

7 0
4 years ago
Read 2 more answers
Other questions:
  • Ben's Auto Dealer had a sale on Saturday for its new cars. By 10 a.m. 30% of the new cars had been sold. What decimal represents
    6·2 answers
  • Jenna knits scarves and then sells them on Etsy, an online marketplace. Let C(x) = 4x + 20 represent the cost C in
    5·2 answers
  • The scoop of an excavator holds 27 ft3 of sand. If the capacity of a freight car is 40 tons of sand and we know that 1 ft3 of sa
    5·2 answers
  • Can you think of any other real-life scenarios where parallel lines and transversals<br> exist ?
    11·2 answers
  • each morning a gardener uses 24 3/4 gallons of water from a barrel. each afternoon, she adds 15 1/4 gallons of water to the barr
    12·1 answer
  • suppose a city with a population of 400,000 had been growing at a rate of 4% per year. if this rate continues,fine the populatio
    9·2 answers
  • What is 2/5 of 9?
    8·1 answer
  • COME HERE ANSER PLEASE 25 POINTS!!!!!!!!!!!!!!!!
    14·1 answer
  • What was the lower quartile of the number of absences?
    5·2 answers
  • How many positive three-digit integers have the hundreds digit equal to 7 and the units (ones) digit equal to 1?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!